http://www.hobby-boards.com/catalog/product_info.php?cPath=24&products_id=1504
http://www.aagelectronica.com/aag/index.html
http://www.springbokshop.com/
http://www.arunet.co.uk/tkboyd/e1dhw.htm
Upgrading to 2.5p5-4 might improve the stability… I don't remember if 2.4p1 had any major problems…
You should avoid start owftpd and owhttpd if you don't use them.
/opt/etc/init.d/S80owftpd stop
/opt/etc/init.d/S80owhttpd stop
Most important is to view the errors from owserver (which control the USB-adapter)
grep -v " 0" /tmp/1wire/bus.0/statistics/errors/*
To view the errors from owfs (which could have network-problem to connect to owserver) look at the errors in the root:
grep -v " 0" /tmp/1wire/statistics/errors/*
/Christian
Från: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] För Rob Conway
Skickat: den 3 november 2006 14:12
Till: owfs-developers@lists.sourceforge.net
Ämne: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)
Christian
I did a standard ipkg install and just rebooted, owfs picked up the 4 devices on the network and I did not do anything else. Basically I use it as a data collector and simple web server "owfs + rrdtool + thttpd + smtpclient + NTP
I have used the TOP command to monitor CPU load and thttpd only takes 1-2 % CPU load to serve web pages and my script when it runs takes less than 1% load. rrdtool can take up to 90% cpu utilisation.
today did an ipkg update and it reported an update to "owlib on root from 2.4p1-1 to 2.5p5-4..."
How do you read your sensors from the NSLU2?
Answer: just use a bash script to gather the data...see below... didn't know ifI should use cached or uncached so I used uncached
## Read script ############
#!/bin/bash
PH=$(/opt/bin/awk '{printf "%4.2f\n",((($0-1)/2.6667)+5.5)}' /tmp/1wire/uncached/20.B71F05000000/volt.A)
US=$(/opt/bin/awk '{printf "%5.1f\n",($0*100)}' /tmp/1wire/uncached/20.B71F05000000/volt.B)
T_DEGC=$(/opt/bin/awk '{printf "%3.1f\n",((($0-1)*5)+20)}' /tmp/1wire/uncached/20.B71F05000000/volt.C)
CO2=$(/opt/bin/awk -v PH="$PH" '{printf "%4.1f\n",((3*$0)*(10^(7-PH)))}' /public/kh_value)
TDS=$(/opt/bin/awk -v COND="$US" '{printf "%3.1f\n",(COND*$0)}' /public/tds_factor)
LITRES=$(/opt/bin/awk '{printf "%3.1f\n",(($0-3.1)*65)}' /tmp/1wire/uncached/20.952A05000000/volt.D)
rrdtool update /public/aquaph.rrd N:$PH
rrdtool update /public/aquadegc.rrd N:$T_DEGC
rrdtool update /public/aquaco2.rrd N:$CO2
rrdtool update /public/aquacond.rrd N:$US
rrdtool update /public/level.rrd N:$LITRES
##########################
Are the grahps generated on the actual NSLU2?
Answer: Yes I use rrdtool, on the NSLU2
Do you read from a mounted fuse-filesystem on the NSLU2, or are you connecting to a running owserver on the NSLU2?
Answer: I just read from the file system
Do you use the owshell-commands on a NSLU2 or some other remote-server?
Answer: Everything is running on the NSLU2,
Do you use the Bonjour/Zeroconf feature on the NSLU2?
Answer: ??? Don't know what this is, must have a look ? never touched any of the owfs configuration files. Just use the :3001 web page to view some data and reset the PIO.x flags.
Is it normal to have all these processes running for 4 off 1wire devices on the network ?
## Output of ps ################
446 root 848 S owserver -P /opt/var/run/owserver.pid -u -p 3002
456 root 852 S owserver -P /opt/var/run/owserver.pid -u -p 3002
462 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
464 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
466 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
471 root 628 S owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:
474 root 628 S owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:
475 root 628 S owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:
476 root 628 S owftpd -P /opt/var/run/owftpd.pid -s 3002 -p 0.0.0.0:
481 root 488 S owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001
484 root 492 S owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001
488 website 4056 S /usr/sbin/thttpd -C /etc/thttpd-website.conf
639 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
640 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
641 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
644 root 492 S owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001
702 root 492 S owhttpd -P /opt/var/run/owhttpd.pid -s 3002 -p 3001
715 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
789 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
5218 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
5219 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
5220 root 928 S owfs -P /opt/var/run/owfs.pid -s 3002 /tmp/1wire
9222 root 824 S upnpd &>/dev/null
10012 root 1828 S sshd: [EMAIL PROTECTED]
10014 root 568 S -sh
10236 root 852 S owserver -P /opt/var/run/owserver.pid -u -p 3002
10237 root 852 S owserver -P /opt/var/run/owserver.pid -u -p 3002
cheers from australia
----- Original Message -----
From: Christian Magnusson
Sent: Friday, November 03, 2006 11:40 PM
Subject: Re: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)
How do you read your sensors from the NSLU2?
Are the grahps generated on the actual NSLU2?
Do you read from a mounted fuse-filesystem on the NSLU2, or are you connecting to a running owserver on the NSLU2?
Do you use the owshell-commands on a NSLU2 or some other remote-server?
Do you use the Bonjour/Zeroconf feature on the NSLU2?
I'm just trying to figure out if it could be a network problem (either hardware or owfs-network code), fuse-related problem, mDNS bugs (in my quick compilation), or problem the new owshell commands.
/Christian
Från: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED]] För Paul Alfille
Skickat: den 3 november 2006 12:24
Till: owfs-developers@lists.sourceforge.net
Ämne: [Owfs-developers] Fwd: [owfs - Help] DS2450 and the NSLU2 (SLUG)
>From the forum:
----------------------
Read and respond to this message at:
https://sourceforge.net/forum/message.php?msg_id=3993682
By: rob_conway
First post to this group however have been usinf owfs for a couple fo months
and want to grow my network. I have loaded owfs on my NSLU2 "aka SLUG" and
have a number of devices off the link. It works great 99.9% of the time and
am very pleased. I log the data and sync to NTP time and display this on a
web page.
I was wondering if anybody else has seen the following with respect to the DS2450
(4 ch A/D)
a/ A PIO channel sometimes, maybe once per month, change from 1 to 0 thus disabling
the analog input channel. I then go back into the interface (web page) and
change it back to 1 and all is well again. It can happen on any of the the
four channels however only 1 channel PIO gets changed. I have no scripts quering
PIO.x I suppose a fix maybe to query the PIO.x's and set it if its 0.
b/ The analog input reading seems very noisy ie the values change +/- 0.1 volts
on the Volt.x register ie 0-5v scale. I have ended up doing a number of reads
and averaging the result over a 15 minute period.
c/ You will also see on the attached link below a spike on one of the temperature
inputs. This can happen very infrequent and also late in the morning so I have
discounted any type of interference.
http://img.photobucket.com/albums/v319/rjconway/1wire.jpg
cheers
rob
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